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45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <array>
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// template <size_t I, class T, size_t N> const T& get(const array<T, N>& a);
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#include <array>
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#include <cassert>
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#include "test_macros.h"
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// std::array is explicitly allowed to be initialized with A a = { init-list };.
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// Disable the missing braces warning for this reason.
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#include "disable_missing_braces_warning.h"
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int main(int, char**)
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{
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{
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typedef double T;
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typedef std::array<T, 3> C;
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const C c = {1, 2, 3.5};
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assert(std::get<0>(c) == 1);
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assert(std::get<1>(c) == 2);
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assert(std::get<2>(c) == 3.5);
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}
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#if TEST_STD_VER > 11
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{
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typedef double T;
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typedef std::array<T, 3> C;
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constexpr const C c = {1, 2, 3.5};
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static_assert(std::get<0>(c) == 1, "");
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static_assert(std::get<1>(c) == 2, "");
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static_assert(std::get<2>(c) == 3.5, "");
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}
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#endif
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return 0;
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}
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